package day1;

import java.util.*;

/**
 * @author oldliu
 * @since 1.0
 */
public class Arr4 {
    public static void main(String[] args) {
        List<String> list=new LinkedList<>();
        list.add("nihao");
        list.add("desk");
        ((LinkedList)list).addFirst("王乐俊");
        System.out.println(list);

    }
}
